The upper part of Thailand will experience cool to cold weather on Thursday as the high-pressure system covering this part of the country continues to weaken and westerly winds prevail, the Thai Meteorological Department said this morning.
It urged people in the upper country to take care of their health due to cold weather and beware of fire hazards due to dry air.
Meanwhile, the northeast monsoon prevailing over the Gulf of Thailand, the South and the Andaman Sea is weakening, bringing isolated thunderstorms to the South.
Waves in the lower Gulf rise to 2 metres high and above 2 metres in thunderstorms, while waves in the upper Gulf and the Andaman Sea are likely to reach 1-2 metres in height and above 2 metres in thunderstorms, the department said.
The department urged people in the South to beware of inshore surges. All ships should proceed with caution and keep off thundershowers, it added.
The weather forecast for the next 24 hours is as follows:
North: Cool to cold; minimum temperature 14-16 degrees Celsius, maximum 28-32°C; cold to very cold on mountaintops with frost in some areas.
Northeast: Cold; minimum 10-15°C, maximum 27-32°C; cold to very cold on mountaintops.
Central: Cool in the morning; minimum 16-20°C, maximum 29-31°C.
East: Cool in the morning; minimum 18-21°C, maximum 30-32°C; waves about a metre high and 1-2 metres high offshore.
South (east coast): Cool in the morning; isolated thundershowers mostly in Surat Thani, Nakhon Si Thammarat, Phatthalung, Pattani, Yala and Narathiwat; minimum 20-25°C, maximum 29-32°C; waves 2 metres high and above 2 metres high in thundershowers.
South (west coast): Isolated light rains; minimum 22-25°C, maximum 31-35°C; waves 1-2 metres high and above 2 metres high in thundershowers.
Bangkok metropolitan area: Cool in the morning; minimum 19-21°C, maximum 30-31°C.